Crude Oil Source Identification of Asphalt via ATR-FTIR Approach Combined with Multivariate Statistical Analysis

Table 2

Descriptive statistics analysis of the 12 CAPs.

Statistical indicators	Oil source	Average value	Median value	Maximum value	Minimum value
2920^–1	Middle East	52.10	51.62	55.46	49.83
	South America	55.85	54.20	61.02	53.29
	Bohai Rim region of China	54.39	53.29	56.64	53.23
2850^–1	Middle East	59.82	59.51	63.60	58.43
	South America	63.26	62.39	67.38	60.74
	Bohai Rim region of China	62.97	62.36	64.88	61.69
1700^–1	Middle East	91.07	91.14	91.96	89.28
	South America	91.46	91.50	92.29	90.83
	Bohai Rim region of China	92.92	92.41	94.06	92.29
1600^–1	Middle East	87.31	87.37	88.25	85.10
	South America	87.67	87.49	88.74	87.20
	Bohai Rim region of China	90.66	90.26	91.63	90.08
1460^–1	Middle East	68.71	68.64	70.10	67.64
	South America	69.81	69.81	71.68	68.27
	Bohai Rim region of China	72.03	72.18	72.24	71.67
1380^–1	Middle East	75.51	75.48	76.95	74.08
	South America	76.11	76.12	77.26	74.77
	Bohai Rim region of China	78.51	78.50	78.96	78.07
1166^–1	Middle East	85.26	85.41	86.33	83.43
	South America	85.88	85.91	86.84	84.65
	Bohai Rim region of China	89.48	89.10	90.25	89.08
1032^–1	Middle East	84.37	84.49	86.35	82.29
	South America	85.78	86.30	86.80	82.57
	Bohai Rim region of China	90.10	89.81	90.68	89.81
969^–1	Middle East	86.53	86.72	87.73	84.97
	South America	87.28	87.22	88.10	85.98
	Bohai Rim region of China	90.33	90.15	90.69	90.14
872^–1	Middle East	83.74	83.93	84.64	81.00
	South America	84.86	84.67	86.09	83.79
	Bohai Rim region of China	88.97	88.53	89.86	88.50
812^–1	Middle East	80.73	81.12	81.85	77.23
	South America	82.70	82.79	83.88	80.40
	Bohai Rim region of China	88.63	88.24	89.43	88.21
723^–1	Middle East	78.18	78.14	80.74	76.17
	South America	81.32	81.38	82.70	78.25
	Bohai Rim region of China	85.61	84.90	87.15	84.78